Carpet cleaner and a scrub brush. I used that a purple power and I got it spotless, minus the carpet. It still looks like shit. You can ask anybody that's seen the inside of my truck. It was disgusting.

I use this CU4 stuff Don't know why the price is so high. I bought a whole kit from a gas station for $50. It included 3 cans of the wax, 1 can of tire shine, 1 can of all purpose cleaner, 1 can ofupholstery cleaner and 2 micro fibers. Anyway it got stains out of my GVR4 that I tried getting off with multiple other product but to no avail. I live by this stuff now, especially the wax.